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Merge CSV

Connect tables with the same columns.

Select files

or drag and drop here

.csv, .tsv · up to 50 MB per file 100 MB total

Help and information

How to use

Combine several CSV tables into one by matching columns by their names.

  1. Choose suitable files.
  2. Adjust the result if needed.
  3. Click “Merge CSV” and download the finished file.
Read the full guide
Frequently asked questions
Where is the processing performed?
The file or text is sent to the server for processing. Before starting, read the terms and conditions on the tool page and agree to it. Download the finished result before the expiration date indicated on the page.
What to do if the result is not suitable?
Take the original file or text and try other settings in the steps above. Compare the new result with the previous one. The original files on your device remain unchanged.
Features and limits

Columns are connected by exact names, even if they are located differently in the files. Formula protection can add an apostrophe before the value to prevent the editor from executing it as a formula.

.csv, .tsv → .csv, .json

50 MB / file; 100 MB in total; 20 files.

The upload starts only after you agree and start processing. The result’s storage period will be shown when processing finishes.

Download the generic CSV and JSON report. Check the number of rows, new and missing columns. Blank cells may appear where values ​​are missing.